[gimp] plug-ins: s/Windows.h/windows.h/.

[Jehan Pagès <jehanp src gnome org>]

commit 36daa6dba88e3350d6579d3883708c112d2baa4d
Author: Jehan <jehan girinstud io>
Date:   Sat Dec 9 17:29:33 2017 +0100

    plug-ins: s/Windows.h/windows.h/.
    
    I just cross-compiled for Windows after a long time. The header file is
    all lowercase on a cross-compilation MinGW-w64 environment. I'm not sure
    what is the case on Windows, but since this platform is case-insensitive
    for file names, I believe this won't break anything on native builds.

 plug-ins/file-raw/file-raw-utils.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/plug-ins/file-raw/file-raw-utils.c b/plug-ins/file-raw/file-raw-utils.c
index 906f173..37a820c 100644
--- a/plug-ins/file-raw/file-raw-utils.c
+++ b/plug-ins/file-raw/file-raw-utils.c
@@ -27,7 +27,7 @@
 #endif
 
 #ifdef GDK_WINDOWING_WIN32
-#include <Windows.h>
+#include <windows.h>
 #endif
 
 #include <libgimp/gimp.h>